56720665002624 has 64 divisors (see below), whose sum is σ = 172187733051840. Its totient is φ = 16205904285696.

The previous prime is 56720665002601. The next prime is 56720665002649. The reversal of 56720665002624 is 42620056602765.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10550716249 + ... + 10550721624.

It is an arithmetic number, because the mean of its divisors is an integer number (2690433328935).

Almost surely, 2^{56720665002624} is an apocalyptic number.

It is an amenable number.

56720665002624 is an abundant number, since it is smaller than the sum of its proper divisors (115467068049216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56720665002624 is a wasteful number, since it uses less digits than its factorization.

56720665002624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21101437897 (or 21101437885 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 56720665002624 in words is "fifty-six trillion, seven hundred twenty billion, six hundred sixty-five million, two thousand, six hundred twenty-four".